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JSON Validator

Validate JSON syntax with clear errors.

Check whether your JSON is valid and get a precise error location if it is not.

How to use this tool

  1. 1

    Paste your JSON

    Validation runs automatically as you type.

  2. 2

    Read the result

    Valid, or the exact syntax error if not.

Frequently asked questions

This tool runs entirely in your browser. Your data is never uploaded or sent to our servers.

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